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  1. swathdiver

    Useless Information

    My helper and I got after the axle the other morning and got the backlash to .003 without using the J-24429 spanner. Using the spanner to turn the adjuster up another 5 slots got us to .005 and I called it good and went to doing the gear tooth contact pattern. As you can see, it's not perfect...
  2. swathdiver

    2009 Yukon Denali worth

    No, it's completely seamless. https://www.motortrend.com/how-to/how-to-remove-add-vvt-to-your-engine/ The Denali's 3.42s with the 6-speed is comparable to the old 4-speed and 4.10s. The Denali's 3rd gear final drive ratio is 5.23:1 and her 4th gear is 3.94:1. Truck looks to be in great...
  3. swathdiver

    Build thread - 3.08 to 3.42 front and rear gear change

    I bought it because of the part number. Got it in the other day, still in the sleeve. We're supposed to work on the axle tomorrow or Saturday, to get that last .002-3 of ring gear clearance and do the yellow gear mesh thing before moving on.
  4. swathdiver

    The EBCM Nightmare, & how to get the module programmed.

    When I see a bunch of random codes I think low battery charge. The other day mine through a code for the RR wheel speed sensor and one for the navigation radio. Cleared the codes and they came back while my wife was making a short run to the store and back. So I cleared them again and took...
  5. swathdiver

    Build thread - 3.08 to 3.42 front and rear gear change

    https://www.amazon.com/dp/B0749FSY57?psc=1&ref=ppx_yo2ov_dt_b_product_details I know it's late but may help someone else.
  6. swathdiver

    2009 Yukon Denali worth

    The L9H in the 2009 Denali does indeed have VVT unless someone removed it. A RWD Denali has the 9.5" 14-bolt semi-floater rear axle. If you want to tow with that short wheelbase rig, change the fluid often. Transmission coolers don't last forever and neither do the lines, they get clogged...
  7. swathdiver

    Service Battery AND Low Coolant warnings

    Your computer is telling you now that something is wrong with the charging system. After checking/replacing the cables, the alternator probably cannot perform under load to the satisfaction of the computer program. You can unplug the current sensor which will run the alternator at full output...
  8. swathdiver

    Blend door actuator

    The actuator is broken and likely needs to be replaced and then calibrated with a scan tool. I have never been successful with a fuse removal calibration, I've always had to use my Tech-2. Your truck is more modern than the Tech-2, it would use the MDI or MDI2 with GDS or GDS2 software on a...
  9. swathdiver

    Does a 2024 Z51 with 6.2 require premium fuel?

    And what did you see on the scan tool?
  10. swathdiver

    Build thread - 3.08 to 3.42 front and rear gear change

    I've always used orange RTV on both sides, very thin, on paper gaskets like this. I ordered a Lube Locker off of Amazon, should be here in a few days. It's supposed to be reusable. My daughter came by and raided my spares! Too bad nobody makes the rubber/metal one like the 10-bolts. Mine is...
  11. swathdiver

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    A low battery can set off the alarm. Check her state of charge with the Tech-2.
  12. swathdiver

    Build thread - 3.08 to 3.42 front and rear gear change

    That one goes on the driver's side lower control arm bracket on the axle. It faces the differential housing. You'll see the threaded hole for it.
  13. swathdiver

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Battery low on juice? Mine's been throwing codes as she's been sitting or making short runs to the store. I know the battery ought to be put on the tender but man is hot and humid out there. Maybe tonight! LOL
  14. swathdiver

    07Burb’s 09 Deathscalade Non-Build

    You gotta remind us what brand hubs those were and how long they lasted! I just replaced a Timken after "only" 84K miles.
  15. swathdiver

    2011 Yukon Transmission?

    Well, Nick is the guy who works on these every day, I'd follow his advice.
  16. swathdiver

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I'm trying to think, I think mine did something similar a few years ago. Intake gaskets or spark plug gap, can't remember.
  17. swathdiver

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Fuel Pump trims look good, better than mine and about the same as my pickup.
  18. swathdiver

    Rock Auto Discount Codes - Post 'em Here for Others to Use

    Thanks for keeping us with this Ron, you helped to save me $79 today.
  19. swathdiver

    2009 Yukon - AC not blowing in middle seat vents.

    Open the vents over the middle row! I'm not exactly sure what's wrong here. The auxiliary mode actuator controls where air flows for the rear AC. It does not make sense to me that the 2nd row is not getting any air and the 3rd row vents are. I'm not an expert on how the system works. I...
  20. swathdiver

    2011 Yukon Transmission?

    How's she running now?
  21. swathdiver

    Build thread - 3.08 to 3.42 front and rear gear change

    Sounds good. Got my carrier dropped in today and was at .003 backlash but did not have the special spanner to tighten the adjuster on the side. The brass drift I was using was bending. So I quit being a cheapskate and bought the $184 spanner. We were melting in the garage at 0730 anyway, too...
  22. swathdiver

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    @Doubeleive So your fuel pressure is running at 55 psi? Is that commanded as well? Either way, I've never seen with any of mine, they always run 43.5 psi at idle and at WOT. What is your Fuel Pump's LT Trim? I believe this is way to gauge the pump's health.
  23. swathdiver

    Texas Speed Stage 2 L92 Cam Install on a 2013 Denali

    I remember. Yours was the exception. I wonder if we ought to use a guide a thousandth or two thicker?
  24. swathdiver

    2011 Yukon Transmission?

    P0741 is telling us that your Torque Converter Clutch system is stuck in the off position. This "might" be fixed with a new or repaired TECHM (you can rebuild it on your kitchen table) or she might need the transmission overhauled or replaced. Lots of threads on here about doing those things...
  25. swathdiver

    Does a 2024 Z51 with 6.2 require premium fuel?

    Did you measure this with a scan tool of some kind or your ears?

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